div.webpage_class {
    width: 100%;
    border: 1px solid RGB(0, 74, 150);
}

tr:nth-child(even) {
    background-color: #f2f2f2;
}

tr:hover {
    background-color: #ddd;
}

th {
    background-color: RGB(0, 74, 150);
    color: white;
}

td {
    text-align: center;
    border-left: 1px solid RGB(0, 74, 150);
    border-right: 1px solid RGB(0, 74, 150);
}

table td:first-child { 
    border-left: none;
}

table td:last-child {
    border-right: none;
}

table {
    border-collapse: collapse;
    border: 1px solid RGB(0, 74, 150);
}

header {
    padding: 1em;
    color: white;
    background-color: RGB(0, 74, 150);
    background-image: url("seal.png");
    padding-top: 1px;
    border: 1px;
    border-bottom: 1px solid RGB(0, 74, 150);
    background-repeat: no-repeat;
    background-position: left;
    clear: left;
    text-align: center;
}

footer {
    padding: 1em;
    color: white;
    background-color: RGB(224, 24, 43);
    clear: left;
    text-align: center;
}

nav {
    float: left;
    max-width: 220px;
    
    margin: 0;
    padding: 1em;
}

nav ul {
    list-style-type: none;
    padding: 0;
}

nav ul a {
    text-decoration: none;
}

article {
    max-height: 655px;
    margin-left: 170px;
    padding: 1em;
    overflow: auto;
    border-left: 1px solid RGB(0, 74, 150);
    min-height: 557px;
}

body {
    font-family: "Trebuchet MS", Helvetica, sans-serif;
}

button.link_button {
    background-color: white;
    border: 2px solid #4CAF50;
    border-radius: 8px;
    color: black;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    width: 220px;
    align-content: center;
    white-space: nowrap;
    transition-duration: 0.2s;
    cursor: pointer;
}

button.link_button:hover {
    background-color: #4CAF50; /* Green */
    color: white;
}

input[type="submit"] {
    margin-left: 5px;
    white-space: normal;
}

footer {
    border-top: 1px solid RGB(0, 74, 150);
}